cocoa, coco

Cocoa or cocoa means chocolate; the seed of the cacao tree--
Add 2 cups of cocoa, and stir the batter.
Cocoa  may also mean a hot beverage made of chocolate--
Would you like some hot cocoa?
A cup of cocoa is just the thing for a snowy day.
Cocoa may describe something the color of chocolate--
She had on a cocoa-colored dress and a wide-brimmed hat.

Coco or coco ( rhymes with cocoa ) means a coconut, the seed of the coconut palm, consumed as a food or beverage--
In some Asian countries, coco is eaten as a vegetable.
We use coco or coconut to make candy and cake.

Coco may also mean  fiber from the coconut palm, also called coir, used to make rugs and other goods--
This door mat is made from coco fiber.

Now that you know that, you can say--
"Let's put some cocoa in the cake, and top it with coconut."

Note--"coca" is a different plant; its leaves are used to make cocaine, the illegal drug--
The narcotics bureau has asked these farmers to stop growing coca, and to plant coffee instead.

Note # 2--"Coke" or "Coca-Cola" means the famous American soft drink, which originally contained cocaine--
"Have a Coke and a smile."
Would you like an ice-cold Coca-Cola?

Note # 3--a "coker" lives in the coal-mining region of Western Pennsylvania--
He lived and died a coker, and never left the mountains where he was born.